Hermes Secure Email Gateway vs Mailprotector
Hermes Secure Email Gateway
hermesseg.io
Mailprotector
mailprotector.comSide by side
| Figure | Hermes Secure Email Gateway | Mailprotector |
|---|---|---|
| Price from | $62.50/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Linux | Yes | — |
| API | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 3 | 8 |
| Spec score · Email Security Gateways | 9.0 (#1) | 8.3 (#4) |
| Encryption | Hermes supports SMTP TLS, S/MIME, PGP, encrypted-PDF fallback and Dovecot mail-crypt encryption at rest. | Bracket encrypts messages when the subject contains square brackets and requires no apps, plugins, or passwords from senders or recipients. |
| Integrations | Published integration targets include Microsoft 365, Google Workspace, Exchange, Postfix, Nextcloud, LDAP and Active Directory. | The integrations page lists ConnectWise, Autotask, and Gradient for synchronizing licensing or service counts and billing workflows. |
| Support | Community support is informal through GitHub forums, the issue tracker, Matrix, and Telegram; direct vendor support requires eligible Pro support coverage or purchased incidents. | Mailprotector support hours are Monday through Friday, 9:00 AM to 8:00 PM ET, excluding federal holidays. |
| What it does | Hermes is a self-hosted Docker Compose email-security gateway and full mail server that can also run in hybrid mode. | Mailprotector provides cloud email security products for MSPs covering filtering, zero-trust protection, encryption, archiving, continuity and email health analysis. |
Plans
Hermes Secure Email Gateway
- Community EditionFree
- Community EditionFree
- Pro Edition$750 a year
Mailprotector
- RadarFree
- RadarFree
- BracketPriced on request
- CloudFilterPriced on request
- Mailprotector products (pricing not publicly listed)Priced on request
- SecureStorePriced on request
- ShieldPriced on request
- XtraMailPriced on request
In their own words
Hermes Secure Email Gateway
Hermes Secure Email Gateway is a self-hosted Docker Compose stack for email security, mail hosting, encryption, and collaboration. It can sit in front of Microsoft 365, Google Workspace, Exchange, or Postfix, run as a full mail server, or combine those roles in a hybrid setup. Incoming mail passes through Postfix postscreen and RBL checks, followed by scanning orchestrated by Amavisd-new with SpamAssassin and ClamAV. Hermes checks SPF, signs and verifies DKIM, enforces and aggregates DMARC, and signs and verifies ARC. Encryption options include SMTP TLS, S/MIME, PGP, encrypted PDF fallback, and Dovecot mail-crypt at rest. Full-server mode adds Dovecot mailboxes, IMAPS, POP3S, Submission, LMTP, quotas, shared mailboxes, and Sieve rules. Bundled Nextcloud supplies file sync, webmail, calendars, and contacts; Authelia provides single sign-on and multi-factor options. The free Community Edition is open source. Pro costs $750.00 per year per server and has a free 30-day trial. Hermes requires a Linux host with Docker Engine 24.0 or later and Docker Compose v2.
Mailprotector
Mailprotector makes email security and management products exclusively for managed service providers. Shield combines a secure email gateway with an API integration for Microsoft 365 environments; the company says Google Workspace support is on the horizon. CloudFilter filters email where customers control MX records, including Microsoft 365, Google Workspace, on-premises servers, hosted environments and POP/IMAP. Bracket encrypts messages when a subject contains square brackets, without requiring apps, plugins or passwords from senders or recipients. It uses AES-256, and its one-time sign-in links expire after 15 minutes or become invalid if opened from another device. SecureStore captures messages going forward and has a seven-year default retention period, which can be adjusted. Mailprotector states that it holds the HIPAA Seal of Compliance from Compliancy Group and is SOC 2 Type 2 certified. ConnectWise, Autotask and Gradient integrations support licensing or service-count synchronization and billing workflows, and are free. Radar is a free email security check; current product pricing is available from an account manager.